MCQOPTIONS
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MCQOPTIONS
This section includes 903 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Normal pH of blood of a human being is |
| A. | 6.4 |
| B. | 14.2 |
| C. | 3.4 |
| D. | 7.4 |
| Answer» E. | |
| 202. |
Outermost covering in animals is called as |
| A. | epithelium |
| B. | mesophyll |
| C. | lignin |
| D. | cellulose |
| Answer» B. mesophyll | |
| 203. |
Glycogen (C₂₄H₄₂O₂₁) is a type of |
| A. | Monosaccharide |
| B. | Disaccharides |
| C. | ATPs |
| D. | Polysaccharides |
| Answer» E. | |
| 204. |
Secretory glands of plants are called |
| A. | lymphs |
| B. | enzymes |
| C. | hydathodes |
| D. | plasmodesmota |
| Answer» D. plasmodesmota | |
| 205. |
Size of intercellular spaces in walls of lymph vessels are larger which facilitates entry of |
| A. | larger molecules |
| B. | lymph node |
| C. | interstitial fluid |
| D. | proteins |
| Answer» B. lymph node | |
| 206. |
If Biuret solution is added to egg white, the resulting color will be |
| A. | blue |
| B. | black |
| C. | red |
| D. | violet |
| Answer» E. | |
| 207. |
Agranulocytes are produced in |
| A. | lymphoid tissue |
| B. | red bone marrow |
| C. | white bone marrow |
| D. | Both b and c |
| Answer» B. red bone marrow | |
| 208. |
Opium, morphine and heroin are examples of |
| A. | opiates |
| B. | cocaine |
| C. | depressant drugs |
| D. | cannabis |
| Answer» B. cocaine | |
| 209. |
On boiling with Benedict solution, the reducing sugar will form a precipitate of |
| A. | green color |
| B. | red color |
| C. | blue-black color |
| D. | violet color |
| Answer» C. blue-black color | |
| 210. |
Lives of organisms in ecosystem become threatened due to |
| A. | urbanization |
| B. | industrialization |
| C. | introduction of toxics in ecosystem |
| D. | rapid housing |
| Answer» D. rapid housing | |
| 211. |
In yeast, alcoholic fermentation results through |
| A. | aerobic respiration |
| B. | anaerobic respiration |
| C. | antirobic respiration |
| D. | photosynthesis |
| Answer» C. antirobic respiration | |
| 212. |
Fats, amino acids and proteins are formed through |
| A. | glucose |
| B. | water |
| C. | glycogen |
| D. | cellulose |
| Answer» B. water | |
| 213. |
Female gametes are called as |
| A. | ova |
| B. | egg |
| C. | ovum |
| D. | all of above |
| Answer» E. | |
| 214. |
All vertebrates possess |
| A. | open circulatory system |
| B. | close circulatory system |
| C. | partially open system |
| D. | partially closed system |
| Answer» C. partially open system | |
| 215. |
In selective reabsorption, water is retained through |
| A. | concentration gradient |
| B. | blood pressure |
| C. | osmosis |
| D. | active transport |
| Answer» D. active transport | |
| 216. |
In the absence of selective reabsorption, a person may |
| A. | not need to urinate |
| B. | have many toxic wastes retained in ultrafiltration |
| C. | dehydrate |
| D. | have proteins and fats restored in body |
| Answer» D. have proteins and fats restored in body | |
| 217. |
Collecting tubules transport waste materials into the |
| A. | renal pelvis |
| B. | ureter |
| C. | hilus |
| D. | medulla |
| Answer» B. ureter | |
| 218. |
Chemical spraying in agriculture may contaminate |
| A. | vegetables |
| B. | fruits |
| C. | farmers |
| D. | underground water |
| Answer» E. | |
| 219. |
Systemic arch disappears in |
| A. | birds |
| B. | mammals |
| C. | both of them |
| D. | amphibians |
| Answer» D. amphibians | |
| 220. |
Only partial breakdown of glucose molecule (C₆H₁₂O₆) takes place in |
| A. | aerobic respiration |
| B. | anaerobic respiration |
| C. | passive respiration |
| D. | active respiration |
| Answer» C. passive respiration | |
| 221. |
Exchange of gases in leaves is accelerated by wet surfaces of |
| A. | root |
| B. | stem |
| C. | bark |
| D. | leaf |
| Answer» E. | |
| 222. |
Kinds of tissues making up the stomach are |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 223. |
Chyme in context of digestion process is |
| A. | small, slippery masses of food |
| B. | partly digested liquefied food |
| C. | fats mixed with lymph to form a milky fluid |
| D. | undigested carbohydrates |
| Answer» C. fats mixed with lymph to form a milky fluid | |
| 224. |
At night, cease of photosynthesis makes water |
| A. | more acidic |
| B. | more alkaline |
| C. | neutral |
| D. | salty |
| Answer» B. more alkaline | |
| 225. |
A complex of interactions of reactions involving elements and molecules constitutes a |
| A. | bacteria |
| B. | virus |
| C. | living organism |
| D. | dead plants |
| Answer» D. dead plants | |
| 226. |
Aspirin lowers the risk of |
| A. | heart attack |
| B. | coma |
| C. | diabetes |
| D. | migraines |
| Answer» B. coma | |
| 227. |
Division of bacteria is inhibited through the |
| A. | Cephalosporins |
| B. | Tetracyclines |
| C. | Erythromycins |
| D. | all of above |
| Answer» B. Tetracyclines | |
| 228. |
Process by which harmful substances are added to environment is called as |
| A. | Silting |
| B. | Pollution |
| C. | Desertification |
| D. | Flooding |
| Answer» C. Desertification | |
| 229. |
Fatty acids and glycerol (C₃H₈O₃) are produced after hydrolysis of |
| A. | amino acids |
| B. | fats |
| C. | starch |
| D. | cellulose |
| Answer» C. starch | |
| 230. |
Hydrogen carbonate ions (HCO₃⁻) are carried to |
| A. | blood plasma |
| B. | lungs |
| C. | liver cells |
| D. | blood capillaries |
| Answer» C. liver cells | |
| 231. |
ATP and proteins is supplied to companion cells via |
| A. | sieve tubes |
| B. | porous wall |
| C. | cell wall |
| D. | vascular tissue |
| Answer» B. porous wall | |
| 232. |
Xylem tissues are also called as |
| A. | wood |
| B. | supportive |
| C. | lignin |
| D. | all of above |
| Answer» E. | |
| 233. |
Hormones of human body are transported to target sites via |
| A. | cells |
| B. | blood |
| C. | plasma |
| D. | serum |
| Answer» C. plasma | |
| 234. |
Basic unit of identification is |
| A. | stimuli |
| B. | order |
| C. | species |
| D. | family |
| Answer» D. family | |
| 235. |
In plants, seed formation occurs when the |
| A. | flowering season starts |
| B. | environment is suitable for growth |
| C. | unfavorable season approaches |
| D. | fruit turns lumpy |
| Answer» D. fruit turns lumpy | |
| 236. |
Glucose (C₆H₁₂O₆) is formed during photosynthesis, by |
| A. | getting water through roots |
| B. | carbon dioxide entering through stomata |
| C. | minerals obtained through fertilizers |
| D. | oxygen being used in respiration |
| Answer» C. minerals obtained through fertilizers | |
| 237. |
Average adult protein requirement is |
| A. | 40 to 50 g |
| B. | 50 to 70 g |
| C. | 50 to 100 g |
| D. | 70 to 100 g |
| Answer» D. 70 to 100 g | |
| 238. |
Water is evaporated from plant through |
| A. | lamina |
| B. | mid-rib |
| C. | stomata |
| D. | roots |
| Answer» D. roots | |
| 239. |
Phagocytosis refers to |
| A. | eating foreign particles |
| B. | the formation of pus |
| C. | gives hemoglobin red color |
| D. | can result in a persons death |
| Answer» B. the formation of pus | |
| 240. |
In ecosystem ,Silting means |
| A. | trees do not retain water |
| B. | eroded soil gets deposited in rivers and streams |
| C. | water levels rise rapidly in rivers |
| D. | all of above |
| Answer» C. water levels rise rapidly in rivers | |
| 241. |
Bean-shaped cells in a leaf which encloses stoma is |
| A. | pith |
| B. | xylem |
| C. | pores |
| D. | guard cells |
| Answer» E. | |
| 242. |
Number of pyramids in mammals can be up to |
| A. | 4 to 8 |
| B. | 8 to 12 |
| C. | 12 to 16 |
| D. | 16 to 20 |
| Answer» D. 16 to 20 | |
| 243. |
Mold Pencillium was discovered by Alexander Fleming in |
| A. | 1931 |
| B. | 1928 |
| C. | 1935 |
| D. | 1939 |
| Answer» C. 1935 | |
| 244. |
In order to get glucose (C₆H₁₂O₆), enzyme maltase shall be applied to |
| A. | maltose |
| B. | starch |
| C. | galactose |
| D. | glycogen |
| Answer» B. starch | |
| 245. |
Forests can not be conserved if |
| A. | timber trees are cut down worldwide |
| B. | timber trees are cut down selectively |
| C. | if rate of plantation exceeds rate of cutting trees |
| D. | new seedlings are planted and grown trees are cut |
| Answer» B. timber trees are cut down selectively | |
| 246. |
All is true for Voodoo lily, but, |
| A. | the flies stay away due to rotten fresh smell |
| B. | its helps plant in reproduction |
| C. | more smelling compounds are vaporized due to heat |
| D. | insects are attracted for pollination |
| Answer» B. its helps plant in reproduction | |
| 247. |
Sweat glands are embedded into |
| A. | epidermis |
| B. | dermis |
| C. | subcutaneous adipose tissue |
| D. | non subcutaneous adipose tissue |
| Answer» C. subcutaneous adipose tissue | |
| 248. |
Lymph capillaries join together forming larger lymph vessels, which give rise to |
| A. | lymph duct |
| B. | thoracic duct |
| C. | thoracic lymph duct |
| D. | sperm duct |
| Answer» D. sperm duct | |
| 249. |
Positive hydrostatic pressure which is generated by roots is around |
| A. | 200-300 KPA |
| B. | 100-220 KPa |
| C. | 100-200 KPa |
| D. | 110-330 KPa |
| Answer» D. 110-330 KPa | |
| 250. |
During process of exosmosis, protoplast shrink which is termed as |
| A. | plasmodesmata |
| B. | plamolysis |
| C. | protolysis |
| D. | lytic cycle |
| Answer» C. protolysis | |